Getting Started with Couchbase

What Couchbase is

Couchbase is a distributed document database. Documents are JSON. There are no fixed schemas — each document in a collection can have different fields.

It combines three things that usually require separate systems:

• KV store (like Redis) — sub-millisecond get/set by key
• SQL++ query engine (like PostgreSQL) — full SQL over JSON documents
• Full-text + vector search (like Elasticsearch) — FTS and semantic search

Data hierarchy